class_docstr: Environment with tuple of discrete spaces at each time step.
code: def reward(
      self,
  ) -> float:
      return float(self._reward)
  
file_path: nevergrad/nevergrad/functions/gym/tuple_gym_env.py
imports: import gym
  import numpy
  from gym.spaces import Box, Tuple, MultiDiscrete
label_desc: Use image node_id 3 for calling the TupleActionSpace obj's underlying member method code with example usage: obj.reward() and returns: float